(Passive): Armor and Magic Resistance Garen gains from Items, Runes, and Masteries are increased by 20%.
(Active): Garen places a defensive shield on himself, decreasing all damage taken by a percentage and reducing the effectiveness of Crowd Control by 30%.
No Cost
Damage Reduced: 30%
Duration: 2/3/4/5/6 seconds
Cooldown: 24/23/22/21/20 seconds

+75 Attack Damage
UNIQUE Passive: +20% Life Steal
UNIQUE Passive: Your basic attacks can now overheal you. Excess life is stored as a shield that can block 50-350 damage, based on champion level.
This shield decays slowly if you haven't dealt or taken damage in the last 25 seconds.

Swiftness, IE and Mercurial is only nice in this build. Idk what BT doing here, when LW is cheaper and much better. And for def may be needed Omen, its better for AD Garen, than Sunfire. Sunfire is only tradition.